moves migrations to /sqlstore/migrations

pkg/services/sqlstore/migrations/serverlock_migrations.go

@@ -0,0 +1,22 @@
+package migrations
+
+import "github.com/grafana/grafana/pkg/services/sqlstore/migrator"
+
+func addServerlockMigrations(mg *migrator.Migrator) {
+	serverLock := migrator.Table{
+		Name: "server_lock",
+		Columns: []*migrator.Column{
+			{Name: "id", Type: migrator.DB_BigInt, IsPrimaryKey: true, IsAutoIncrement: true},
+			{Name: "operation_uid", Type: migrator.DB_NVarchar, Length: 100},
+			{Name: "version", Type: migrator.DB_BigInt},
+			{Name: "last_execution", Type: migrator.DB_BigInt, Nullable: false},
+		},
+		Indices: []*migrator.Index{
+			{Cols: []string{"operation_uid"}, Type: migrator.UniqueIndex},
+		},
+	}
+
+	mg.AddMigration("create server_lock table", migrator.NewAddTableMigration(serverLock))
+
+	mg.AddMigration("add index server_lock.operation_uid", migrator.NewAddIndexMigration(serverLock, serverLock.Indices[0]))
+}